An Adaptive Sensing Time Based on SNR for Spectrum Utilization Enhancement in Cognitive Radio

Cognitive radio is considered as the most intelligent solution to enable flexible use of the frequency spectrum. It allows the secondary user to use the band in which the primary user is idle. Spectrum sensing is a major task in cognitive radio systems. In this task, the secondary user is required t...

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Bibliographic Details
Published inWireless personal communications Vol. 106; no. 2; pp. 307 - 319
Main Authors Alkady, Mohammad S., Abd-Elnaby, Mohammed, El-Dolil, Sami A., Abd El-Samie, Fathi E.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.05.2019
Springer Nature B.V
Subjects
Cognitive radio
Communications Engineering
Computer Communication Networks
Detection
Engineering
Frequency spectrum
Networks
Radio systems
Signal,Image and Speech Processing
Spectrum allocation
Utilization
Spectrum utilization
Throughput
Spectrum sensing
Cognitive radio
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Summary:Cognitive radio is considered as the most intelligent solution to enable flexible use of the frequency spectrum. It allows the secondary user to use the band in which the primary user is idle. Spectrum sensing is a major task in cognitive radio systems. In this task, the secondary user is required to sense the frequency spectrum and vacate the band once the primary user is detected. The actual utilization and the achievable throughput of a cognitive radio system depend on the correctly detected holes and the spectrum sensing time. In this paper, a new adaptive sensing time technique based on the Signal-to-Noise Ratio (SNR) is proposed to improve the actual spectrum utilization and the achievable throughput.
ISSN:0929-6212
1572-834X
DOI:10.1007/s11277-018-6071-0